Juliana discovers she's far from safe from the Resistance in the Reich. Smith confronts the reality of the lengths he's willing to go to in order to protect his son. And another father - Joe's - tries to persuade him to give Berlin a chance. Frank also has a decision to make: how far is he prepared to go to help the Resistance cause?

Joe learns a truth about his past that makes him question everything. The rift between Frank and Ed widens as Frank is drawn further into the Resistance. In order to assure her safety, Juliana must betray someone close to her.